有 N 个电量为 q 的点电荷,以两种方式分布在相同半径的圆周上,一种是无规则地分布,另一种是均匀分布,比较在这两种情况下在通过圆心 O 并垂直于圆环面的 Z 轴上任意点 P 的场强与电势,则有 ( )
A.
场强相等,电势相等
B.
场强不相等,电势不相等
C.
场强分量 相等,电势相等
D.
场强分量 相等,电势不相等;
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